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The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The results were as follows. (Give your answers correct to two decimal places.)
22
(a) Find the equation of the line of best fit
(b) Find se2.
Can we conclude at a 98% level of confidence, that the mean number of hours per day using the computer by students at IUP is the same as the typical student's usage?
According to hypothetical information, 18% of all Americans have hazel colored eyes. A SRS of 25,000 Americans are surveyed and asked about their eye color
If she performs 15 demonstrations this week, what is the probability of her being satisfactory? What is the probability of between 4 and 8 (inclusive) orders?
What is meant by the probability of an event? Discuss how addition and multiplication techniques are used to solve probability problems.
Now consider the real numbers. In fact, lets narrow our focus way down to just the part of the real line between 0 and 1. Circle that part of the real line. How many real numbers are there in between 0 and 1? What can you conclude from all this?
on his sport team the mean height is 71 in and the standard deviation is 3 in.jeffs height is 76 in.in his sport team
If 2 circuit boards are selected at random without replacing the first, what is the probability both circuit boards are defective?
An internal study by the Technology Services department at Lahey Electronics revealed company employees receive an average of two emails per hour. Suppose the arrival of these emails is approximated by the Poisson distribution.
Estimate the true proportion of college students who believe in the possibilty of haunted places with 99% confidence.
serious golfers and golf equipment companies sometimes make use of golf equipment testing labs sometimes make use of
Make a worksheet in Excel for your calculations. (b) Make a histogram of the data. Would you be justified in using a parametric t test that assumes normality?
1 a random sample of 60 college graduates results in a mean time to graduate of 4.58 years with a standard deviation of
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